I'm going to install my new pioneer headunit and was wondering what all was needed for the install, wiring harnesses, etc. I just have a stock HU in there right now, no bose. THX

 

you're going to need a dash kit too. You're not getting new speakers? my in tercel that i had i was running 2 pionner 6.5 and 2 6x9 in the rear, sounded good. They were hooked up to a 400 watt amp, and i also had two mtx 10in....need the bass!!!